abandy commented on code in PR #37764:
URL: https://github.com/apache/arrow/pull/37764#discussion_r1372406514
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swift/ArrowFlight/Sources/ArrowFlight/FlightClient.swift:
##########
@@ -28,6 +28,40 @@ public class FlightClient {
client = Arrow_Flight_Protocol_FlightServiceAsyncClient(channel:
channel)
}
+ private func readMessages(_ responseStream:
GRPCAsyncResponseStream<Arrow_Flight_Protocol_FlightData>) async throws ->
ArrowReader.ArrowReaderResult {
+ let reader = ArrowReader()
+ let arrowResult = ArrowReader.MakeArrowReaderResult();
+ for try await data in responseStream {
+ switch reader.fromMessage(data.dataHeader, dataBody:
data.dataBody, result: arrowResult) {
+ case .success(_):
+ continue;
+ case .failure(let error):
+ throw error
+ }
+ }
+
+ return arrowResult;
+ }
+
+ private func writeBatches(_ requestStream:
GRPCAsyncRequestStreamWriter<Arrow_Flight_Protocol_FlightData>, descriptor:
FlightDescriptor, recordBatchs: [RecordBatch]) async throws {
+ let writer = ArrowWriter()
+ switch writer.toMessage(recordBatchs[0].schema) {
+ case .success(let schemaData):
+ try await requestStream.send(FlightData(schemaData, dataBody:
Data(), flightDescriptor: descriptor).toProtocol())
+ for rc in recordBatchs {
+ switch writer.toMessage(rc) {
Review Comment:
Good catch, will update, thanks!
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